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Alexxx [7]
3 years ago
11

Does a normal liver weigh 1400 grams

Biology
1 answer:
lara [203]3 years ago
4 0
The human liver weighs 1.5 kg
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For this task, you will imagine that you are a reporter for a scientific magazine. Your task is to explain the process of protei
amid [387]

Answer:

Please find the explanation below

Explanation:

Our nucleus is made up of a genetic material called deoxyribonucleic acid (DNA), which is a double-helical structure that stores the genetic information needed for the optimal functioning of any organism. DNA, alongside RNA are nucleic acids that are composed of NUCLEOTIDES subunits. The nucleotide consists of a pentose sugar (deoxyribose in DNA and ribose in RNA), nitrogenous base and a phosphate group.

However, the genetic information stored in the DNA molecule needs to be expressed in order to form useful products (proteins). This genetic expression is done in two stages viz: transcription and translation. Transcription, which is catalyzed by an enzyme called RNA polymerase is the process whereby the information stored in the DNA is used to synthesize a mRNA molecule. However, this mRNA molecule is considered pre-mature until it is processed. RNA processing occurs in three stages viz: 5' capping, polyadenylation, and splicing.

5' capping involves adding a 5' cap to the marks molecule. Polyadenylation involves adding a poly(A) tail to the mRNA molecule while splicing is the removal of introns (non coding regions) with the aid of Spliceosomes and joining of the exons (coding region). After processing, the mRNA becomes matured and ready to be translated.

Translation is the process whereby the mRNA transcript is used to synthesize a protein molecule. It occurs in the ribosomes (organelles for protein synthesis, a complex of rRNA and proteins) where the mRNA is read in a group of three nucleotides called CODON. The reading is done by the Anticodon of a transfer RNA (tRNA), which is complementary to the codon.

Translation occurs in three stages: initiation, elongation and termination. The mRNA attaches to the P site of the ribosomes (initiation) where it is attached to by a tRNA's anticodon complementary to it. The anticodon carries the amino acid corresponding the codon and shifts to the A-site. The addition of amino acid to the polypeptide chain continues (elongation) until a stop codon is encountered, which signals the end of the translation process i.e. termination. This causes the polypeptide (protein) to be released from the E-site.

The synthesized protein undergoes packaging and modification in the Golgi apparatus.

5 0
3 years ago
What can happen if the niche doesn’t function properly?
shepuryov [24]
Cancer will happen if it doesn’t function properly
6 0
3 years ago
Signals from _______ and the body's _______ are received by the brain and the spinal cord.
snow_lady [41]

Signals from neurons and the body's nervous system are received by the brain and the spinal cord.

OR

Signals from organs and the body's senses are received by the brain and the spinal cord. (I looked it up on quizlet to make sure I was right, and someone had organs and senses for the blanks, so I put it here just in case)

I'm not sure which answers your teacher(s) accept, but hopefully this helps.

8 0
3 years ago
Read 2 more answers
An infant is born in the breech position, and assessment indicates the presence of erb palsy (erb-duchenne paralysis). which cli
Marina86 [1]
The clinical manifestation which supports this conclusion is that an injury to the brachial plexus which happens during birth. Erb is termed as a paralysis of the arm which is caused by an injury on upper arm's main nerves to be specifically the C5-C6 nerves.
It arrives most commonly on shoulder dystocia when there is a difficult birth. This paralysis can resolve on its own depending on nature of the damage.
6 0
3 years ago
Which of the following is true of penguins?
Alexxx [7]

A. They live in the polar regions of the Northern and Southern Hemispheres.

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